include/opencascade/Graphic3d_TypeOfBackfacingModel.hxx

0001 // Created on: 1991-10-07
0002 // Created by: NW,JPB,CAL
0003 // Copyright (c) 1991-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _Graphic3d_TypeOfBackfacingModel_HeaderFile
0018 #define _Graphic3d_TypeOfBackfacingModel_HeaderFile
0019
0020 //! Modes of display of back faces in the view.
0021 enum Graphic3d_TypeOfBackfacingModel
0022 {
0023   Graphic3d_TypeOfBackfacingModel_Auto,        //!< automatic back face culling enabled for opaque groups with closed flag
0024                                                //!  (e.g. solids, see Graphic3d_Group::IsClosed())
0025   Graphic3d_TypeOfBackfacingModel_DoubleSided, //!< no culling (double-sided shading)
0026   Graphic3d_TypeOfBackfacingModel_BackCulled,  //!< back  face culling
0027   Graphic3d_TypeOfBackfacingModel_FrontCulled, //!< front face culling
0028   // old aliases
0029   Graphic3d_TOBM_AUTOMATIC  = Graphic3d_TypeOfBackfacingModel_Auto,
0030   Graphic3d_TOBM_FORCE      = Graphic3d_TypeOfBackfacingModel_DoubleSided,
0031   Graphic3d_TOBM_DISABLE    = Graphic3d_TypeOfBackfacingModel_BackCulled,
0032   V3d_TOBM_AUTOMATIC        = Graphic3d_TypeOfBackfacingModel_Auto,
0033   V3d_TOBM_ALWAYS_DISPLAYED = Graphic3d_TypeOfBackfacingModel_DoubleSided,
0034   V3d_TOBM_NEVER_DISPLAYED  = Graphic3d_TypeOfBackfacingModel_BackCulled
0035 };
0036
0037 #endif // _Graphic3d_TypeOfBackfacingModel_HeaderFile